Scalable switched capacitor integrated buck (SCIB) regulator for high conversion step down application

A scalable switched capacitor integrated buck (SCIB) regulator comprising:

• first and second input power stages, the first input power stage coupled to an input terminal, and the first and second input power stages configured to step down an input voltage at the input terminal to a biasing voltage;
• first and second output power stages connected in series with the first and second input power stages respectively, the first and second output power stages comprising respective first and second buck regulator circuits having respective first and second voltage outputs, and the first and second buck regulator circuits configured to regulate the biasing voltage to different output voltages at the first and second voltage outputs;
• and
• a DC shift switch circuit coupled in series between the first and second input power stages, the DC shift switch circuit configured to compensate voltage differences between the first and second input power stages.